{"id":127935,"date":"2024-10-26T10:25:19","date_gmt":"2024-10-26T02:25:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/127935\/"},"modified":"2024-10-26T10:25:20","modified_gmt":"2024-10-26T02:25:20","slug":"redis-%e5%a6%82%e4%bd%95%e5%90%88%e7%90%86%e5%88%a9%e7%94%a8%e5%85%a7%e5%ad%98%e8%b3%87%e6%ba%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/127935\/","title":{"rendered":"Redis \u5982\u4f55\u5408\u7406\u5229\u7528\u5167\u5b58\u8cc7\u6e90"},"content":{"rendered":"<h1 id=\"redis-%e5%a6%82%e4%bd%95%e5%90%88%e7%90%86%e5%88%a9%e7%94%a8%e5%85%a7%e5%ad%98%e8%b3%87%e6%ba%90-RdiKhySXwH\">Redis \u5982\u4f55\u5408\u7406\u5229\u7528\u5167\u5b58\u8cc7\u6e90<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u5206\u6790\u7b49\u3002\u5408\u7406\u5229\u7528 Redis \u7684\u5167\u5b58\u8cc7\u6e90\uff0c\u4e0d\u50c5\u80fd\u63d0\u9ad8\u61c9\u7528\u7684\u6027\u80fd\uff0c\u9084\u80fd\u964d\u4f4e\u904b\u884c\u6210\u672c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u548c\u512a\u5316 Redis \u7684\u5167\u5b58\u4f7f\u7528\u3002<\/p>\n<h2 id=\"1-%e7%90%86%e8%a7%a3-redis-%e7%9a%84%e5%85%a7%e5%ad%98%e7%ae%a1%e7%90%86-RdiKhySXwH\">1. \u7406\u89e3 Redis \u7684\u5167\u5b58\u7ba1\u7406<\/h2>\n<p>Redis \u7684\u5167\u5b58\u7ba1\u7406\u4e3b\u8981\u4f9d\u8cf4\u65bc\u5176\u6578\u64da\u7d50\u69cb\u7684\u7279\u6027\u3002Redis \u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u6bcf\u7a2e\u6578\u64da\u985e\u578b\u5728\u5167\u5b58\u4e2d\u7684\u5b58\u5132\u65b9\u5f0f\u4e0d\u540c\uff0c\u56e0\u6b64\u4e86\u89e3\u9019\u4e9b\u6578\u64da\u7d50\u69cb\u7684\u7279\u6027\u662f\u512a\u5316\u5167\u5b58\u4f7f\u7528\u7684\u7b2c\u4e00\u6b65\u3002<\/p>\n<h3 id=\"1-1-%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b%e7%9a%84%e9%81%b8%e6%93%87-RdiKhySXwH\">1.1 \u6578\u64da\u7d50\u69cb\u7684\u9078\u64c7<\/h3>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u53ef\u4ee5\u986f\u8457\u5f71\u97ff\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u9700\u8981\u5b58\u5132\u5927\u91cf\u9375\u503c\u5c0d\u7684\u5834\u666f\uff0c\u4f7f\u7528\u54c8\u5e0c\u8868\u800c\u975e\u5b57\u7b26\u4e32\u53ef\u4ee5\u7bc0\u7701\u5167\u5b58\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u6578\u64da\u7d50\u69cb\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u7b26\u4e32\uff1a<\/strong>\u9069\u5408\u5b58\u5132\u7c21\u55ae\u7684\u9375\u503c\u5c0d\uff0c\u5167\u5b58\u4f7f\u7528\u76f8\u5c0d\u76f4\u63a5\u3002<\/li>\n<li><strong>\u54c8\u5e0c\uff1a<\/strong>\u7576\u5b58\u5132\u5927\u91cf\u5c0f\u9375\u503c\u5c0d\u6642\uff0c\u54c8\u5e0c\u8868\u7684\u5167\u5b58\u958b\u92b7\u6703\u66f4\u5c0f\u3002<\/li>\n<li><strong>\u5217\u8868\uff1a<\/strong>\u9069\u5408\u5b58\u5132\u6709\u5e8f\u6578\u64da\uff0c\u4f46\u5728\u5143\u7d20\u6578\u91cf\u8f03\u591a\u6642\uff0c\u5167\u5b58\u4f7f\u7528\u6703\u589e\u52a0\u3002<\/li>\n<li><strong>\u96c6\u5408\uff1a<\/strong>\u9069\u5408\u5b58\u5132\u552f\u4e00\u5143\u7d20\uff0c\u5167\u5b58\u4f7f\u7528\u96a8\u8457\u5143\u7d20\u6578\u91cf\u7684\u589e\u52a0\u800c\u589e\u52a0\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e8%a8%ad%e5%ae%9a%e5%90%88%e7%90%86%e7%9a%84%e5%85%a7%e5%ad%98%e9%99%90%e5%88%b6-RdiKhySXwH\">2. \u8a2d\u5b9a\u5408\u7406\u7684\u5167\u5b58\u9650\u5236<\/h2>\n<p>Redis \u5141\u8a31\u7528\u6236\u8a2d\u5b9a\u5167\u5b58\u9650\u5236\uff0c\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u5167\u5b58\u6ea2\u51fa\u3002\u7576\u9054\u5230\u8a2d\u5b9a\u7684\u5167\u5b58\u9650\u5236\u6642\uff0cRedis \u6703\u6839\u64da\u914d\u7f6e\u7684\u9a45\u9010\u7b56\u7565\u4f86\u91cb\u653e\u5167\u5b58\u3002\u5e38\u898b\u7684\u9a45\u9010\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>noeviction\uff1a<\/strong>\u4e0d\u9a45\u9010\u4efb\u4f55\u9375\uff0c\u7576\u5167\u5b58\u6eff\u6642\uff0c\u5beb\u5165\u64cd\u4f5c\u5c07\u8fd4\u56de\u932f\u8aa4\u3002<\/li>\n<li><strong>allkeys-lru\uff1a<\/strong>\u6839\u64da\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff08LRU\uff09\u7b97\u6cd5\u9a45\u9010\u9375\u3002<\/li>\n<li><strong>volatile-lru\uff1a<\/strong>\u50c5\u9a45\u9010\u8a2d\u7f6e\u4e86\u904e\u671f\u6642\u9593\u7684\u9375\u3002<\/li>\n<\/ul>\n<p>\u9078\u64c7\u5408\u9069\u7684\u9a45\u9010\u7b56\u7565\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5728\u5167\u5b58\u4f7f\u7528\u9054\u5230\u4e0a\u9650\u6642\uff0c\u4fdd\u6301\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"3-%e4%bd%bf%e7%94%a8%e5%85%a7%e5%ad%98%e5%84%aa%e5%8c%96%e6%8a%80%e8%a1%93-RdiKhySXwH\">3. \u4f7f\u7528\u5167\u5b58\u512a\u5316\u6280\u8853<\/h2>\n<p>\u9664\u4e86\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u548c\u8a2d\u5b9a\u5167\u5b58\u9650\u5236\u5916\uff0c\u9084\u53ef\u4ee5\u63a1\u7528\u4e00\u4e9b\u5167\u5b58\u512a\u5316\u6280\u8853\u4f86\u9032\u4e00\u6b65\u63d0\u9ad8 Redis \u7684\u5167\u5b58\u4f7f\u7528\u6548\u7387\u3002<\/p>\n<h3 id=\"3-1-%e5%a3%93%e7%b8%ae%e6%95%b8%e6%93%9a-RdiKhySXwH\">3.1 \u58d3\u7e2e\u6578\u64da<\/h3>\n<p>\u5c0d\u65bc\u67d0\u4e9b\u61c9\u7528\u5834\u666f\uff0c\u53ef\u4ee5\u8003\u616e\u5c0d\u6578\u64da\u9032\u884c\u58d3\u7e2e\u3002\u96d6\u7136 Redis \u672c\u8eab\u4e0d\u652f\u6301\u6578\u64da\u58d3\u7e2e\uff0c\u4f46\u53ef\u4ee5\u5728\u61c9\u7528\u5c64\u9762\u9032\u884c\u58d3\u7e2e\u548c\u89e3\u58d3\u7e2e\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5b58\u5132\u5728 Redis \u4e2d\u7684\u6578\u64da\u91cf\u3002<\/p>\n<h3 id=\"3-2-%e4%bd%bf%e7%94%a8-redis-%e7%9a%84%e5%85%a7%e5%ad%98%e5%84%aa%e5%8c%96%e9%81%b8%e9%a0%85-RdiKhySXwH\">3.2 \u4f7f\u7528 Redis \u7684\u5167\u5b58\u512a\u5316\u9078\u9805<\/h3>\n<p>Redis \u63d0\u4f9b\u4e86\u4e00\u4e9b\u5167\u5b58\u512a\u5316\u9078\u9805\uff0c\u5982 <code>active-defrag<\/code> \u548c <code>lazyfree<\/code>\u3002\u9019\u4e9b\u9078\u9805\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5728\u904b\u884c\u6642\u81ea\u52d5\u91cb\u653e\u4e0d\u518d\u4f7f\u7528\u7684\u5167\u5b58\uff0c\u5f9e\u800c\u63d0\u9ad8\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u3002<\/p>\n<h2 id=\"4-%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e6%95%b4%e5%85%a7%e5%ad%98%e4%bd%bf%e7%94%a8-RdiKhySXwH\">4. \u76e3\u63a7\u548c\u8abf\u6574\u5167\u5b58\u4f7f\u7528<\/h2>\n<p>\u5b9a\u671f\u76e3\u63a7 Redis \u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u63d0\u4f9b\u7684 <code>INFO<\/code> \u547d\u4ee4\u4f86\u67e5\u770b\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u4e26\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u9032\u884c\u8abf\u6574\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u76e3\u63a7\u6307\u6a19\uff1a<\/p>\n<ul>\n<li><strong>used_memory\uff1a<\/strong>\u7576\u524d\u4f7f\u7528\u7684\u5167\u5b58\u91cf\u3002<\/li>\n<li><strong>maxmemory\uff1a<\/strong>\u8a2d\u5b9a\u7684\u6700\u5927\u5167\u5b58\u9650\u5236\u3002<\/li>\n<li><strong>mem_fragmentation_ratio\uff1a<\/strong>\u5167\u5b58\u788e\u7247\u6bd4\u7387\uff0c\u53cd\u6620\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-RdiKhySXwH\">\u7e3d\u7d50<\/h2>\n<p>\u5408\u7406\u5229\u7528 Redis \u7684\u5167\u5b58\u8cc7\u6e90\u662f\u63d0\u5347\u61c9\u7528\u6027\u80fd\u7684\u95dc\u9375\u3002\u901a\u904e\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\u3001\u8a2d\u5b9a\u5408\u7406\u7684\u5167\u5b58\u9650\u5236\u3001\u4f7f\u7528\u5167\u5b58\u512a\u5316\u6280\u8853\u4ee5\u53ca\u5b9a\u671f\u76e3\u63a7\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406 Redis \u7684\u5167\u5b58\u8cc7\u6e90\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u9032\u4e00\u6b65\u63d0\u5347\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u6709\u6548\u7ba1\u7406Redis\u5167\u5b58\u8cc7\u6e90\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u5b58\u5132\u8207\u8a2a\u554f\u7684\u6700\u4f73\u5316\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-127935","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127935","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=127935"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127935\/revisions"}],"predecessor-version":[{"id":127936,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/127935\/revisions\/127936"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=127935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=127935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=127935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}